Charles O Doolittle-Calhoun County MI

Charles O Doolittle died in Calhoun, County MI around 1870, apparently from suicide. Would like to locate an obit, if there was one, and learn more detail about Charles. He was on the 1860 census in Clarendon Township, Calhoun County, MI, with his wife Emma (2nd wife)and child Alice, age 13.